WO2011081319A2 - Procédé et appareil de réseau pour demander des données sur la base d'un nom de contenu - Google Patents
Procédé et appareil de réseau pour demander des données sur la base d'un nom de contenu Download PDFInfo
- Publication number
- WO2011081319A2 WO2011081319A2 PCT/KR2010/008830 KR2010008830W WO2011081319A2 WO 2011081319 A2 WO2011081319 A2 WO 2011081319A2 KR 2010008830 W KR2010008830 W KR 2010008830W WO 2011081319 A2 WO2011081319 A2 WO 2011081319A2
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- WIPO (PCT)
- Prior art keywords
- segment
- data
- network
- network apparatuses
- segments
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
- H04L67/1068—Discovery involving direct consultation or announcement among potential requesting and potential source peers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
- H04L67/108—Resource delivery mechanisms characterised by resources being split in blocks or fragments
Definitions
- the following description relates to a technique for sharing data in a network system based on contents, and more particularly, to a network apparatus and system that may request or receive the same contents stored in a plurality of network apparatuses.
- the currently used Internet includes an end-to-end connection structure based on Internet Protocol (IP).
- IP Internet Protocol
- IP-based Internet structure a connection between network apparatuses is important and thus, the Internet relies on addresses of the network apparatuses.
- IP addressing and routing Two of the most complicated aspects of IP are IP addressing and routing. Addressing refers to how end hosts become assigned IP addresses and how subnetworks of IP host addresses are divided and grouped together. Accordingly, it may be difficult to continuously download contents once the address of one of the network apparatuses is changed.
- the IP-based Internet structure includes a client-server structure, the addresses of the network apparatuses may be retrieved in order to retrieve contents desired to be downloaded.
- both a network apparatus requesting contents and a network apparatus providing contents may detect a server, thus, reliability on the server may increase.
- contents may not be continuously provided. For example, when streaming video, service may be dropped in between buffering periods.
- a method of requesting data based on a content name including: transmitting a data request message to retrieve data, the data including a plurality of segments, receiving, from a plurality of network apparatuses, at least one segment of the plurality of segments corresponding to the data request message, calculating a transmission offset using at least one of the plurality of network apparatuses transmitting the at least one segment, determining a plurality of transmission regions respectively corresponding to the plurality of network apparatuses, using the calculated transmission offset, transmitting, to a corresponding network apparatus, a message requesting the at least one segment included in the determined plurality of transmission regions, and receiving, from each of the plurality of network apparatuses, the requested message.
- the method may further include that: the transmitting of the data request message broadcasts, to the plurality of network apparatuses, a message requesting a first segment of the plurality of segments, and the first segment is used to retrieve information about whether the data is stored in the plurality of network apparatuses.
- the method may further include that: the determining determines the plurality of transmission regions in the transmission offset unit, starting from a second segment of the plurality of segments to a final segment of the plurality of segments, and the plurality of transmission regions includes the at least one segment corresponding to each of the plurality of network apparatuses transmitting the first segment.
- the method may further include that the calculating adaptively calculates the transmission offset for each of the plurality of network apparatuses transmitting the first segment.
- the method may further include that the calculating adaptively calculates the transmission offset based on an amount of the data and a size of the transmission region transmitted to at least one of the plurality of network apparatuses.
- the method may further include that the calculating includes: counting a number of the plurality of network apparatuses transmitting the first segment, and calculating the transmission offset based on at least one of: a number of the counted network apparatuses, an amount of the data, a size of each of the plurality of segments, and a link state of each of the plurality of network apparatuses transmitting the first segment.
- the method may further include that the transmitting to the corresponding network apparatus multicasts, to the corresponding network apparatuses, a message requesting a start segment included in each of the determined plurality of transmission regions.
- a network apparatus based on a content name
- the network apparatus including: a transceiving unit configured to: transmit a data request message to retrieve data including a plurality of segments, and receive, from a plurality of network apparatuses, at least one segment of the plurality of segments corresponding to the data request message, a calculation unit configured to calculate a transmission offset using at least one of the plurality of network apparatuses transmitting the at least one segment, and a transmission region determining unit configured to determine a plurality of transmission regions respectively corresponding to the plurality of network apparatuses, using the calculated transmission offset, wherein the transceiving unit is further configured to: transmit, to a corresponding network apparatus, the data request message included in the determined plurality of transmission regions, and receive, from each of the plurality of network apparatuses, the at least one segment corresponding to the determined plurality of transmission regions.
- the network apparatus may further include that the transceiving unit is further configured to: broadcast, to the plurality of network apparatuses, a message requesting a first segment of the plurality of segments, and use the first segment to retrieve information about whether the data is stored in the plurality of network apparatuses.
- a method of requesting data based on a content name including: receiving a data request message requesting data including a plurality of segments, determining, in response to sensing a plurality of network apparatuses in which the data included in the received data request message is stored, the start segment corresponding to each of the sensed plurality of network apparatuses based on an amount of the data and a size of each of the plurality of segments, and transmitting, to each of the sensed plurality of network apparatuses, a message requesting the determined start segment.
- the method may further include that, in response to initially transmitting the message requesting the start segment to each of the sensed plurality of network apparatuses, the transmitting: inserts information about the size of each of the plurality of segments in the message requesting the start segment, and transmits, to each of the sensed plurality of network apparatuses, the message in which the information is inserted.
- a computer-readable storage medium storing a program for implementing a method, including: transmitting a data request message to retrieve data, the data including a plurality of segments, receiving, from a plurality of network apparatuses, at least one segment of the plurality of segments corresponding to the data request message, calculating a transmission offset using at least one of the plurality of network apparatuses transmitting the at least one segment, determining a plurality of transmission regions respectively corresponding to the plurality of network apparatuses, using the calculated transmission offset, transmitting, to a corresponding network apparatus, a message requesting the at least one segment included in the determined plurality of transmission regions, and receiving, from each of the plurality of network apparatuses, the requested message.
- a computer-readable storage medium storing a program for implementing a method, including: receiving a data request message requesting data including a plurality of segments, determining, in response to sensing a plurality of network apparatuses in which the data included in the received data request message is stored, the start segment corresponding to each of the sensed plurality of network apparatuses based on an amount of the data and a size of each of the plurality of segments, and transmitting, to each of the sensed plurality of network apparatuses, a message requesting the determined start segment.
- FIGS. 3 and 4 are diagrams used for describing a method of determining a transmission region in a network apparatus.
- FIG. 7 is a diagram used for describing an example method of determining a transmission region in a terminal.
- FIG. 8 is a flowchart illustrating an example method of operating a terminal at which a data request message is received.
- the network apparatus 100 may perform a networking based on a content name that may communicate based on contents with the plurality of terminals 200.
- the network apparatus 100 and the plurality of terminals 200 may share data with each other.
- the network apparatus 100 may include a transceiving unit 110, a calculation unit 120, and a transmission region determining unit 130.
- a first segment from a plurality of segments included in data may be used to retrieve the data stored in the plurality of terminals 200.
- the transceiving unit 110 may transmit a message requesting the second segment to the terminal 201, transmit a message requesting the sixth segment to the terminal 202, transmit a message requesting the tenth segment to the terminal 203, transmit a message requesting the fourteenth segment to the terminal 204, and transmit a message requesting the eighteenth segment to the terminal 205, respectively.
- the terminal 200 includes a transceiving unit 210 and a determination unit 220.
- the terminal 200 may be one from the plurality of terminals 201 to 206.
- a transmission region of the terminal 201 is determined will be described in detail.
Abstract
L'invention porte sur un appareil de réseau et un système qui peuvent demander ou recevoir les mêmes contenus stockés dans une pluralité d'appareils de réseau. Dans un système de réseau partageant des données, des segments spécifiques d'une pluralité de segments constituant les données peuvent être reçus en provenance de terminaux mutuellement différents. Pour cela, une région de transmission peut être déterminée par calcul d'un décalage de transmission correspondant à la pluralité de terminaux, et au moins un segment inclus dans la région de transmission déterminée peut être reçu en provenance d'un terminal correspondant.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2009-0133170 | 2009-12-29 | ||
KR1020090133170A KR101566883B1 (ko) | 2009-12-29 | 2009-12-29 | 콘텐츠 명 기반의 네트워크 장치 및 데이터 요청 방법 |
Publications (2)
Publication Number | Publication Date |
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WO2011081319A2 true WO2011081319A2 (fr) | 2011-07-07 |
WO2011081319A3 WO2011081319A3 (fr) | 2011-11-10 |
Family
ID=44188759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2010/008830 WO2011081319A2 (fr) | 2009-12-29 | 2010-12-10 | Procédé et appareil de réseau pour demander des données sur la base d'un nom de contenu |
Country Status (3)
Country | Link |
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US (1) | US8423609B2 (fr) |
KR (1) | KR101566883B1 (fr) |
WO (1) | WO2011081319A2 (fr) |
Families Citing this family (136)
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US20110161408A1 (en) | 2011-06-30 |
WO2011081319A3 (fr) | 2011-11-10 |
KR101566883B1 (ko) | 2015-11-09 |
KR20110076457A (ko) | 2011-07-06 |
US8423609B2 (en) | 2013-04-16 |
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